vCenter Server 5.1 Build Version Issues

Hi All,

We have installed VC 5.1.0 Build 947673 - and its all working well.

However when we tried to install Update Manager 5.1.0 1065152, it's saying its incompatible. The exact error is:

"The vCenter Server is incompatible with the VMware vSphere Update Manager you are installing. Please select a compatible vCenter Server."

Any help would be great.

Thanks.